TERM History

Particle Barriers: 1956 Until Now the first non-chemical termite barrier

What is TERM Particle Barrier?

TERM Particle Barrier is simply stones

Precisely sized stones - not too small, not too large
Angular in shape, so they pack down tightly.

TERM angular stone particles

How does it stop termites?

This cartoon shows how TERM Particle Barrier works

Stones are too big for termites to move,
and too small for termites to crawl between.

Video shows how:

Termites are unable to return to the ground to get moisture.
They can't move the TERM Particles.

Link: 19 days in the life of a termite colony

Invented in 1956. Now used worldwide

In 1956, Dr. Walter Ebeling, a world-renowned entomologist at the University of California, published research showing that precisely sized particles act as a physical barrier to subterranean termites.

In the 1980’s, Minoru Tamashiro and others at the University of Hawaii developed stone particle barriers to commercialization.

Particle Barriers are used throughout Hawaii today.

Interior foundation with a particle barrier to physically block termites (Maui, Hawaii)

Interior foundation with a particle barrier to physically block termites (Maui, Hawaii)

Research by the Australian national research lab CSIRO confirmed that precisely sized particles of stone exclude termites.  Granite particles are widely used in Australia today (1)

(1) In the 1980’s, Minoru Tamashiro of the University of Hawaii and others developed particle barriers to commercialization.  Particle Barriers are used throughout Hawaii today.
https://www.researchgate.net/publication/267856109_Review_of_Remedial_and_Preventative_Methods_to_Protect_Timber_in_Service_from_Attack_by_Subterranean_Termites_in_Australia

Granite particles used as a termite barrier in cavity walls – Australia

Granite particles used as a termite barrier in cavity walls – Australia